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Cooling solutions

I want to enhance the air-conditioning for my car’s rear seats. Please advise how to go about getting AC vents fitted here.

Manish Makan, via email

AAA Roof-mounted rear AC vents can be installed at any major accessories shop. This should cost you in the region of Rs 12,000-15,000. However, this additional unit will place extra load on the engine, so expect a drop in fuel efficiency, and it can affect your air-conditioning system adversely in the long run as well.